Why is it that everyone who has asked recently about polygraph’s validity is a man, who hasn’t bothered to do any actual research? Hint, the test is actually better than chance. PS: WaPo oped doesn’t ask K to take polygraph; it asks many subtler questions. https://twitter.com/rodolfor/status/1044623418023448576 …
“polygraph tests can discriminate lying from truth telling at rates well above chance, though well below perfection.” https://www.nap.edu/read/10420/chapter/2#4 …